Abstract: A quick coupling system where a conduit can be pushed into the coupling to secure and seal the conduit with the coupling includes a gripping ring and a seal. The seal is located outboard of the gripping ring so that the gripping ring does not damage the outer surface of the conduit engaged by the seal. The coupling system also may include a wiper outboard of the seal to clean the outer surface of the conduit as the conduit is inserted into the coupling system.

Abstract: There is provided a quick coupling system where the conduit is pushed into the coupling to secure and seal the conduit with the coupling. The coupling system includes a gripping ring and a seal. The seal is located outboard of the gripping ring so that the gripping ring does not damage the outer surface of the conduit engaged by the seal. This improves the sealing effectiveness. The coupling system also may include a wiper outboard of the seal to clean the outer surface of the conduit as the conduit is inserted into the coupling system.

Abstract: There is provided a pop-up sprinkler with improved flushing to resist debris build up that can cause improper pop-up and retraction operation. The stem of the sprinkler defines at least one path to flush debris from the sealing area between the stem and the housing of the sprinkler. This path can flush debris during pop-up of the stem from the housing and retraction of the stem into the housing. One or more grooves can be used to provide a number of flushing paths. The stem also can be tapered to provide additional flushing.